User\Reg\UserRegResult.asp

找到以下，加红色的

If KS.Setting(129)="1" and KS.Setting(149)="1" Then

     If Not Conn.Execute("Select top 1 userid from KS_User Where Mobile='" & Mobile & "'").eof Then

    Response.Write("<script>alert('对不起，您输入的手机号码已被占用!');history.back();</script>")

    Exit Sub

     End If

   End If